Like as an example, suppose I have a class that wraps a DataClass

I went to expose the copy function outward

*want

but that would mean repeating its signature

which is a significant amount of boilerplate

I want to be able to write a member function whose signature basically says: i don't care what typse you give me, I accept anything, but whatever you give me I'll just forward to copy

If you're familiar with C++ you can do

template <class ... Ts> void foo(Ts&& ts);

I just want a pure forwarding mechanism